oxford computer (keyboard computer science with application software) Third Edition Grade 3 chapter 1 with Question answers https://www.youtube.com/channel/UCZKFHoWsMfjKMMasZswC1mg/

2. OXFORD
Computer
Chapter 1
Topic: Operating system
Part 1

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 What is a computer made up of?
 Computer is made up of hardware and software.
 Q1. Define Hardware.
 Ans. Physical part of the computer is called
hardware.
 Q2. Define Software.
 Ans. Set of instructions given to a computer to
perform some task in a computer is called software.

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 Operating system
 Q3. Define Operating system.
 Ans. An operating system is a program that helps
the computer hardware to work with other
computer software.

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Types of operating system
 Single user operating system
 Only One user to work on it at a time
 Multi user operating system
 Many people to use the same computer at the
same time.

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 Microsoft window
 Most popular operating system

8. OXFORD KEYBOARD
Computer
Chapter 1
Topic: Operating system
Part 2

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 Desktop
 Icon

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 Q4. Define file.
 Ans. it is used to store any piece of information.
 Q5. Define folder.
 Ans. It is used to store a group of files.

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 Start button

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Taskbar

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Thank
you